Kerchoonz, a free music site has released a portable speaker called K-box that allows you to use any surface as a bass speaker. Several hardware and music blogs have reviewed the speaker which is apparently quite good as portable speakers go.
None of them have really mentioned that this is part of Kerchoonz's freemium strategy, giving away free music and creating new streams of revenue by selling hardware instead. Its similar to what Apple is doing with its ipod and music store. Will this marketing strategy work? Time will tell but I think the K-box has certainly got the attention of the music hardware community and blogs.